After a seven-month construction period from May to November 2025, the Kleinhaus was returned to school and boarding operations following a comprehensive renovation.The ground floor and basement now accommodate eight classrooms, a workshop, and office spaces. The upper floors house, among other facilities, 31 boarding rooms, the residence of the head of boarding, and two common rooms. The Kleinhaus was stripped back to its structural shell and completely refurbished. The total investment amounted to approximately CHF 11 million.